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RE: clabel


From: Labitt, Bruce
Subject: RE: clabel
Date: Fri, 25 Jul 2008 09:08:49 -0400

From: address@hidden [mailto:address@hidden 
Sent: Thursday, July 24, 2008 9:03 PM

On Jul 22, 2008, at 4:53 PM, Labitt, Bruce wrote:

> I need the ability to generate contour plots with labeled contours.
>> From my search on octaveforge, I have found that the "function"  
>> clabel
> is not implemented.  Can I request for this to be added?  I am  
> prepared
> for the comment "why don't you implement it?"
>
> What would it take to implement this feature?  Is it just "code" to be
> implemented, or does it require an intimate knowledge of the guts of
> octave?  If it is just "code" then if someone could point me in the
> right direction, I will take a look at it.  If it is the later,  
> well, I
> guess I'd like to formally request the feature.  At this point I can't
> even get octave to find libpcre despite adding it to LDFLAGS. :(
>
> Regards,
> Bruce


I've only taken a glance, but it appears to me that the labels can be  
added without intimate knowledge of the guts of Octave.

You might begin by looking at contour.m and __contour__.m

Regarding your problems building, what OS are you using? and exactly  
what was the syntax you used to configure Octave?

Ben

[Labitt, Bruce] Thanks for the tip on contour.  I'll take a look at it.

I think I have solved the build problem.  Although I had LDFLAGS
pointing to the correct directory, ld could not find the libraries.  I
had to add a file to /etc/ld.so.conf/ to get ld to be able to find
lpcre.  Then the linker could not find libfftw3 so I had to add a
LD_LIBRARY_PATH statement to tell it an additional place to look.  I
don't know why it was so painful - but it is done.  My OS is Scientific
Linux 5.2, a RHEL clone.  The OS was a fresh install rather than an
incremental upgrade.

Regards,
Bruce




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